Omron R88D-GT series User Manual page 461

Alarm
Error
code
26 Overspeed
Electronic gear setting
27
error
34 Overrun limit error
36 Overrun limit error
37 Parameter corruption
Drive prohibit input
38
error
Excessive analog
39
input 1
Status when error occurs
• The speed command
• The setting for the
Occurs during high-
speed rotation.
• The maximum number
• The encoder wiring is
• The Overspeed
Occurs when torque limit
switching is used.
• The result of multiply-
Occurs when command
signal is input or com-
mand is input.
• The Overrun Limit
Occurs during operation.
• There are data errors
Occurs when the power
supply is turned ON.
• The Servo Drive is
Occurs when the power • The parameters that
supply is turned ON.
• The Forward Drive
Occurs when the Servo
Drive is turned ON or
during operation.
• The voltage input to
Occurs during operation.
8-3 Troubleshooting
Cause
• Set the command
input is too large. pulse frequency to
500 kpps max.
• Set Pn48 and Pn49 so
Electronic Gear Ratio that the command
Numerator (Pn48 or pulse frequency is
Pn49) is not 500 kpps max.
appropriate.
• Adjust the gain.
of rotations is • Reduce the maximum
exceeded due to command speed.
overshooting.
• Correct the wiring
incorrect.
• If torque limit
Detection Level switching is used,
Setting (Pn73) has correctly set the
been exceeded. allowable operating
speed for Pn73.
• Check and review the
ing the command command pulse
pulse by the electronic frequency and the
gear ratio exceeded settings for the
80 Mpps. Electronic Gear Ratio
Refer to 5-8 Electronic parameters (Pn48 to
Gear on page 5-16.
Pn4B).
• Adjust the gain.
• Increase the setting
Setting (Pn26) is ex-
ceeded during opera- for Pn26.
tion. • Set Pn26 to 0 to
disable the function.
• Reset all parameters.
in the parameters that
were read.
• Replace the Servo
faulty. Drive.
• Replace the Servo
were read are corrupt. Drive.
• Correct the wiring.
Prohibit Input (POT) • Replace the limit
and Reverse Drive sensor.
Prohibit Input (NOT) • Check whether the
were both OFF at the power supply for
same time. control is input
correctly.
• Check whether the
setting for Drive Pro-
hibit Input Selection
(Pn04) is correct.
• Lower the input
pin 14 is too high. voltage.
• Change the value for
Pn71.
Countermeasure
8-12
8